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The Transaction Ti needs to be reversed if the log consists of record <Tn, Begin>, but does not contain record <Ti, Commit> or <Ti, ____>

13. The Transaction Ti needs to be reversed if the log consists of record <Tn, Begin>, but does not contain record <Ti, Commit> or <Ti, ____>.

1. Begin
2. End
3. Commit
4. Abort

Answer: D) Abort

Explanation:

The Transaction Ti needs to be reversed if the log consists of record <Tn, Begin>, but does not contain record <Ti, Commit> or <Ti, Abort>.